Ten years after her husband passed away, Nanae raised Hiroshi alone. However, Hiroshi became a school refuser due to bullying and has been a recluse ever since. Nanae tried hard to get him to work, but Hiroshi showed no interest… Was it because he didn't have a father that Hiroshi ended up like this? Nanae was troubled. To get Hiroshi out of the house, Nanae invited him on a hot spring trip.
